Should I sleep with my friend?

I'm a straight guy and I have a female friend who I am very close to. Lately we've come to realise that there's a huge amount of sexual tension in our relationship and it's getting in the way. We don't want to date each other but at this point it's very difficult to be in one room together without flirting and almost making out. We talked it out and she suggested we have one whole weekend of no holds barred everything is on the table exploratory sex just to get it out of our systems and put it behind us. On the one hand, I love this idea because she's a big, voluptuous woman with an ample chest and I've only had sex with skinny girls before so I'd love to see how it works with a partner with some extra padding on her body. On the other hand, I'm afraid if we give in and nail each other, either we won't be able to stop after the weekend or it'll make it too awkward for us to be friends, which would be awful because I really do love her as a person. So should I go through with it or not?