My wife has large, brown areolas, she loves her tits sucked, and lightly chewed on while i tease her pussy with soft caresses. (if we're having a mfm, one man on each tit is doubly good!). After a few minutes of this, she's usually very wet - even in her late 50's, she gets "wet".
Once I slide my cock into her, missionary position, we'll get a slow rhythm going. Sometimes, we'll switch positions around,her riding me for a bit, or doggie position - she really enjoys me reaching around and tickling her clit with a finger or two.
Sometimes, I'll start talking about past mfm's we've had. One man was her favorite fuck of all time. So, I'll start talking about those times- his big cock, and her face and actions while he was fucking her. Usually, doesn't take but a couple minutes of talking about his cock and she's cumming - which starts me cumming...
Other times, I'll straddle her legs, which adds stimulation to her clit, and the motion starts a strong orgasm....