What is your opinion?

So my girl throws a challenge to me... She wants me to shave my cock and balls... Not much of a challenge I warrant you, and I don't have a problem doing it. I of course respond with my own challenge to her. So I put it to her. "Sure, but in return, we have anal sex." I think its fair but I'm sure we will compromise with a blow job and she swallows, or I will at least get to finger her ass... What do you think?