<human>: Can you summarize the given text in a few sentences?

So my girlfriend and I have been dating for about 6 months and it turns out that she really dislikes sex. I ask her all of the time but she declines my offers and constantly assures me that she doesn't like sex. She's not cheating on me, losing interest in the relationship or not sexually attracted to me, she just genuinely doesn't like sex. We've had our ups and down and usually just bounce right back, so it's not a problem with our relationship. 

Today she gave me what every man would dream of, a free pass to have sex with any girl I want while she doesn't, she can't sleep with anyone else or have any sexual contact with anyone but me, she's even willing to sign papers stating that out relationship won't end and she won't get angry with me or try to guy trip me if I accept and fullfil her offer.

My dilemma, morally I feel as though this is the worst thing I could accept. To me it still feels like I'd be cheating, but on the other hand I'd really enjoy it. 

What do I do?
<bot>: girlfriend gave me free pass to have sex with anyone I want, I feel like it's morally wrong. What do I do?