Maybe she had a little too much alcohol

As soon as you've discarded the last of your clothing, Melissa swiftly moves back in front of you and drops to her knees, grabbing hold of your heavy ball sack and taking your cock back into her mouth, slobbering all over you and coating the length of your shaft with her saliva.

She's starting to really get into it and eagerly tries to force you down her throat, but after swallowing down just over half of it, she begins gagging on your meat. Melissa quickly pulls off of your cock, coughing uncontrollably, eyes tearing, and a look of fear on her face. Without a word, she jumps to her feet and sprints from the room and the next thing you hear is a door slam shut.

Minutes pass by with no sign of Melissa and you start to wonder if she's ever going to come back. By now your dick has deflated and you're starting to feel like an idiot, standing naked in the middle of the room, so you gather your clothes and have started slipping your boxers back on when you hear "I'm sorry David, I don't think Melissa is coming back."

Turning, you're greeted by the fantastic sight of Gina standing in the doorway, wearing nothing but a pair of lacy, white, high-cut, thong underwear and a matching bra that lifts and pushes her two, perfect tits together.

Walking into the room to join you, she continues talking. "It's my fault. I didn't realize Melissa had become such a lightweight. I guess those three shots on top of the other drinks she had was just too much. She just got sick and is passed out on the bathroom floor."

Now with the confirmation that nothing will be happening with Melissa tonight, you pick your shirt up from the ground and start slipping it over your head and wondering if Gina would be willing to give you a lift back to your car at the bar, otherwise, you'll probably have to call for an Uber.

"Hold on David." she says, stopping you by placing a hand on your chest. "I didn't say you had to leave. I mean, what kind of person would I be if I let you go with a pair of painful, blue balls? I am the one who started this whole thing by calling you over and I'm the one who bought Melissa those shots. I think it's only fair if I finish off what she started; if you'd like?" she says seductively, slipping her bra straps off her shoulders, causing one of her tits to pop free.

The blood immediately rushes back to your cock at the thought of fucking Gina, who likely would have been your first choice out of the two friends anyway, and you watch as she reaches behind her back to unfasten her bra then lets it fall to the floor, exposing both of her perfectly round, DD-tits.