I'm dating a really good girl that is doing exactly as she supposes. She treats me like a king, and I do de 2/3 rule with her.

Our sex is fantastic, and now both of us want to try anal. We did once successfully, but I don't know why, but after the first time, every time I put lube my dick go soft. I've already tried putting lube only in her ass, but I think now my problem is that we've tried multiple times and I get frustrated.

Other thing is that I watch porn once in two weeks, I'm trying to quit completly, but I didn't have much success.

Anyway, I want to give me and her good anal, so I was thinking about taking some cialis that I have. Question is, should I tell her or I'll look bad?

And you guys have some tips for me to accomplish this without remedies? I also have Ed problems when she's on top of me.