Today my friends and I discussed about this topic
I asked them two questions, the first one was "if you were in a crowded place and Britney Spears was there and choose your boyfriend out of all the men there and said to him she wants to make out with him, what would you do?"
All of them, including myself, would let them. What if Ashton Kutcher came up to me and wanted to make out with me?
The second question was heavier, it was "If Britney Spears chose your boyfriend that you are very in love with to have sex with her, what would you do?"
Some of them said yes, some of them said no. I dont know what I'd say, maybe yes, but if she calls him the day after I'd just kill her