I haven't tried any AAS but I have done Mag10 and had issues with its effect on my sexual prowess. More specifically, although it didnt actually kill libido for me (like id heard it does for many people), it did make it extremely difficult for me to "nut". It basically made sex something I needed to avoid unless I wanted girls to think I was impotent or frigid or didnt like them or wtvr. And that's while on it. For a couple weeks after going off of it I felt like a little bitch who didnt even deserve to have sex even if he'd wanted it.
I can easily see how something like test could even be beneficial to sex by giving u more control, libido, etc. However, I am very curious how AAS other than test - most of all Anavar and Turanabol - would effect my sexual prowess both during and after a short cycle.