diff --git a/Common/Defs/GeneDefs/GeneDefs_Diseases.xml b/Common/Defs/GeneDefs/GeneDefs_Diseases.xml
index f26f2c0..e5c8723 100644
--- a/Common/Defs/GeneDefs/GeneDefs_Diseases.xml
+++ b/Common/Defs/GeneDefs/GeneDefs_Diseases.xml
@@ -20,7 +20,7 @@
         <marketValueFactor>0.95</marketValueFactor>
         <label>genetic disease immunity</label>
         <description>This gene makes the pawn immune against genetic STDs and some other genes that
-            imply negative side-effects. </description>
+            imply negative side-effects.</description>
         <biostatCpx>1</biostatCpx>
         <biostatMet>-1</biostatMet>
         <iconPath>UI/Icons/Rituals/TrialDefend</iconPath>
@@ -38,7 +38,7 @@
         <defName>rjw_genes_minor_vulnerability</defName>
         <label>minor vulnerability</label>
         <description>This gene makes the pawn a bit more vulnerable, and a slightly more attractive
-            target for rape. </description>
+            target for rape.</description>
         <biostatCpx>1</biostatCpx>
         <biostatMet>1</biostatMet>
         <marketValueFactor>0.85</marketValueFactor>
@@ -64,7 +64,7 @@
         <defName>rjw_genes_major_vulnerability</defName>
         <label>major vulnerability</label>
         <description>This gene makes the pawn more vulnerable, and a more attractive target for
-            rape. </description>
+            rape.</description>
         <biostatCpx>2</biostatCpx>
         <biostatMet>1</biostatMet>
         <iconPath>UI/Icons/ColonistBar/Idle</iconPath>
@@ -89,7 +89,7 @@
         <defName>rjw_genes_infectious_hypersexuality</defName>
         <label>infectious hypersexuality</label>
         <description>This gene makes the pawn hypersexual, and has a chance to spread on
-            intercourse. </description>
+            intercourse.</description>
         <iconPath>Genes/Icons/Hypersexual</iconPath>
         <biostatCpx>2</biostatCpx>
         <biostatMet>2</biostatMet>
@@ -114,7 +114,7 @@
     <GeneDef ParentName="RJWGeneDisease">
         <defName>rjw_genes_infectious_bisexuality</defName>
         <label>infectious bisexuality</label>
-        <description>This gene makes the pawn bisexual, and has a chance to spread on intercourse. </description>
+        <description>This gene makes the pawn bisexual, and has a chance to spread on intercourse.</description>
         <iconPath>UI\Ideoligions\Universal\RoundC</iconPath>
         <biostatCpx>1</biostatCpx>
         <biostatMet>0</biostatMet>
@@ -141,7 +141,7 @@
     <GeneDef ParentName="RJWGeneDisease">
         <defName>rjw_genes_infectious_homosexuality</defName>
         <label>infectious homosexuality</label>
-        <description>This gene makes the pawn homosexual, and has a chance to spread on intercourse. </description>
+        <description>This gene makes the pawn homosexual, and has a chance to spread on intercourse.</description>
         <iconPath>UI\Ideoligions\Universal\RoundC</iconPath>
         <biostatCpx>1</biostatCpx>
         <biostatMet>0</biostatMet>
@@ -165,4 +165,25 @@
         </modExtensions>
     </GeneDef>
 
+    <GeneDef ParentName="RJWGeneDisease">
+        <defName>rjw_genes_fluctual_sexual_needs</defName>
+        <label>fluctual sexual needs</label>
+        <description>Carriers of this genetic disease have a chance to suddenly require sex, gaining a bit of energy to find quick relief.</description>
+        <iconPath>UI/Icons/ColonistBar/Idle</iconPath>
+        <biostatCpx>1</biostatCpx>
+        <biostatMet>2</biostatMet>
+        <displayOrderInCategory>11</displayOrderInCategory>
+        <geneClass>RJW_Genes.Gene_FluctualSexualNeed</geneClass>
+        <modExtensions>
+            <li Class="RJW_Genes.GeneticDiseaseExtension">
+                <infectionChance>0.1</infectionChance>
+            </li>
+            <li Class="RJW_Genes.TickBasedChanceExtension">
+                <!-- 30k = 1/2 days -->
+                <tickInterval>30000</tickInterval>
+                <eventChance>0.15</eventChance>
+            </li>
+        </modExtensions>
+    </GeneDef>
+
 </Defs>
\ No newline at end of file
diff --git a/Source/GeneDefOf.cs b/Source/GeneDefOf.cs
index af53f67..e4f4aff 100644
--- a/Source/GeneDefOf.cs
+++ b/Source/GeneDefOf.cs
@@ -124,6 +124,8 @@ namespace RJW_Genes
 		// Diseases
 		public static readonly GeneDef rjw_genes_genetic_disease_immunity;
 		public static readonly GeneDef rjw_genes_minor_vulnerability;
+        public static readonly GeneDef rjw_genes_major_vulnerability;
+		public static readonly GeneDef rjw_genes_fluctual_sexual_needs;
 
         //Other Defs
         public static readonly XenotypeDef rjw_genes_succubus;
diff --git a/Source/Genes/Diseases/Genes/Gene_FluctualSexualNeed.cs b/Source/Genes/Diseases/Genes/Gene_FluctualSexualNeed.cs
new file mode 100644
index 0000000..b25e812
--- /dev/null
+++ b/Source/Genes/Diseases/Genes/Gene_FluctualSexualNeed.cs
@@ -0,0 +1,57 @@
+using rjw;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Verse;
+using static HarmonyLib.Code;
+using static RimWorld.ColonistBar;
+
+namespace RJW_Genes
+{
+    public class Gene_FluctualSexualNeed : Gene
+    {
+
+        int event_interval;
+        float event_chance;
+
+        const float REST_INCREASE = 0.1f;
+        const float SET_SEXNEED_TO = 0.1f;
+
+        public Gene_FluctualSexualNeed() : base()
+        {
+            TickBasedChanceExtension tickbasedChanceExt = GeneDefOf.rjw_genes_fluctual_sexual_needs.GetModExtension<TickBasedChanceExtension>();
+            event_interval = tickbasedChanceExt?.tickInterval ?? 30000; // 30K = 1/2 day
+            event_chance = tickbasedChanceExt?.eventChance ?? 0.1f; 
+        }
+
+
+        public override void Tick()
+        {
+            base.Tick();
+
+            if (pawn.IsHashIntervalTick(event_interval) && (new Random()).NextDouble() < event_chance)
+            {
+                ModLog.Debug($"Firing Gene_FluctualSexualNeed for {pawn}");
+                ApplyFluctualSexNeedEffect(pawn);
+            }
+        }
+
+        public static void ApplyFluctualSexNeedEffect(Pawn pawn)
+        {
+            if (pawn == null || pawn.needs == null) return; 
+
+            var sexneed = pawn.needs.TryGetNeed<rjw.Need_Sex>();
+            if (sexneed != null)
+            {
+                sexneed.CurLevelPercentage = SET_SEXNEED_TO;
+            }
+
+            // Pump up Wake-Ness
+            if (pawn.needs.rest != null)
+                pawn.needs.rest.CurLevel += REST_INCREASE;
+        }
+
+    }
+}
diff --git a/Source/Rjw-Genes.csproj b/Source/Rjw-Genes.csproj
index aa991a2..f684926 100644
--- a/Source/Rjw-Genes.csproj
+++ b/Source/Rjw-Genes.csproj
@@ -76,6 +76,7 @@
     <Compile Include="Genes\Cum\Patch_LikesCumflation.cs" />
     <Compile Include="Genes\Damage\Gene_Elasticity.cs" />
     <Compile Include="Genes\Diseases\Defs\GeneticDiseaseExtension.cs" />
+    <Compile Include="Genes\Diseases\Genes\Gene_FluctualSexualNeed.cs" />
     <Compile Include="Genes\Diseases\Patches\Patch_AftersexUtility_TransferGeneticDiseases.cs" />
     <Compile Include="Genes\Life_Force\Events\SuccubusVisit\IncidentWorker_SuccubusVisit.cs" />
     <Compile Include="Genes\Life_Force\Events\SuccubusVisit\LordJob_SuccubusVisit.cs" />
@@ -239,9 +240,7 @@
       <Private>False</Private>
     </Reference>
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Genes\Diseases\Genes\" />
-  </ItemGroup>
+  <ItemGroup />
   <ItemGroup>
     <WCFMetadata Include="Connected Services\" />
   </ItemGroup>