Pay attention to your responses and feelings. They'll let you know what works for you and what doesn't. You absolutely should not have a crying fit, dump on anyone, sit and pout or in any way throw a tantrum. If you're having a true meltdown and just can't get a grip, apologize, get dressed and tell your friend you'll talk to her tomorrow before taking your leave.

If the guy is cool, and your friend is really a friend, they may stop to comfort you. Let them, since this is how all healthy relationships - even temporary and playful ones - are formed.

No one knows sex better than Nina Hartley. A sexual performer, adventurer, educator, registered nurse and author of Nina Hartley's Guide to Total Sex, Nina Hartley is not your typical porn star: She’s done the field work and taken notes! She has starred in more than 400 adult films, has sold more than 500,000 “how-to” videos, crossed over to mainstream Hollywood with an appearance in the 1997 hit movie Boogie Nights and has the longest continuous career in the history of the porn industry.