When I'm on test I don't really notice a big increase in sexual desire. Now ability...that's a different story. My shit rises on me all the time whether I want it to or not and stamina definately increases. Sometime we have to stop just because she's hurting too much and i'm stuck not bein able to finish. I'm on 700mg Test Prop per week. I wish it would do more for making me want to have sex all the time though. I'm assuming this isn't the case with everybody?