I (male, mid-40s, athletic, academic, good-looking and very well-groomed) am looking for a couple to make the F happy in the MFM constellation. The woman should be the centre of attention and should be satisfied extensively; there is no bi interest. You should be of a similar age (mid-30s to mid-40s), not overweight and well-groomed.
Financial compensation would be fine, but fun and fantasy should be the focus. I will book a nice hotel room.
(as I know an F who would be interested, you could also register as an M. Then a few sentences about your interest and yourself; the F is very picky).