When SHE does the fucking

I've been having intercourse with my current partner for about 18 months. It turns out, she has G spot orgasms and not clit-centered orgasms. I enjoy going down on her and she lets me but it doesn't do that much for her. It gets her wet so it's good for foreplay but she sorta just allows it because she knows I enjoy it. We had some success with the cowgirl position but I have some erection issues after a few minutes. So as per prior post, I take generic cialis and am rock hard the whole time.

Here's the thing - when we have sex, SHE fucks me. As I tend to be submissive, this is a real turn on... but it's strangely vanilla. Basically, I'm a human dildo until my cock stimulates her G spot and she orgasms. By that time she's a bit sweaty (which I find erotic) and she's spent, much like a guy. It's hard for me to keep track of time, but I'm guessing she's fucking me for like 10-15 minutes and I really don't do anything. It is hot, and I admire, that she explores what gets her off. She has determined that I hit her spot better when I have a pillow under my ass, and it's really hot how she places it just where she wants it. My favorite part is when she places her hands on my chest for the leverage. It turns me on so much. It's like she's having a date with me and my cock and I just happen to be there.

When she has her orgasm, she will sorta collapse. I think one time she kept going and got off another time. It's pretty hard for me to orgasm with her on top but we have had a time where we came at the same time. She will kinda get lost in her thought, then flip over and I will blow my load in her pussy.

I wish there was some porn that accurately represented this - where the woman is totally focused on her own orgasm.