Marci and Foggy are at the bar talking to some random OMC (or maybe even Matt or Frank) and then Marci invites the person to have sex with her and Foggy. When they get back to Marci and Foggy's apartment, Marci realizes that the guy has taken more of an interest in Foggy and she most definitely into that. So she sits back and enjoys the view while the guy fucks Foggy but then she gets bored and joins in the fun with her strap on and the guy and Marci completely wreck Foggy.
Marci/Foggy, threesome with an OMC (or Matt or Frank)