GrumpyBear's response is almost exactly what I love to do with my wife and her fuck buddies.
We're in the lifestyle and we do a lot of MFM and MMF threesomes. There isn't always MM interaction, but most of the time I suck his cock clean after he unloads deep in her pussy, then I lick and tongue her clit clean and bring her to another orgasm. As she's recovering from that, I slide into her slippery snatch for sloppy seconds...
So hot!
