S = Stamina (how many rounds can they go for? how long do they last?)
He's a well-built athletic man with a voracious, pitifully unsatisfied appetite - a lot of pent up energy with few places to go. Still, it depends. Newly entering an intimate relationship he tends to last surprisingly short bursts, but has a staggering refractory period. Both can be trained. Add foreplay as a factor into the 'round', though, and the durations change drastically (former lenghtens, latter shortens).
I = Intimacy (how are they during the moment? the romantic aspect)
Passionate but gentle are the two keywords. Sex is never devoid of emotion and communication with him and chances are, if he's chosen a partner for it it means he's equally as eager to please them as be pleased in turn. Usually the more active party (no matter which position or role), enthusiastic and in perpetual heated motion, all the while keeping track of his partner and anticipating wants and needs. Can be overzealous at times, but a fingerwag calms him down. For all his size and weight, though, he's a gentle lover. Keen on touching, stroking, holding, squeezing and kisses, maintaining contact wherever he can. Intimacy is all about connection to him.
L = Location (favorite places to do the do)
Far too unbothered by concepts like 'intimate locations' but does like his privacy from other people. Sex is reserved for only him and a partner, but so long as there's no company or audience (which he despises), any place is a-go. Particularly fond of open sky and soft grass or sand. Impromptu intimacy indoors in any place that isn't a bed also tends to be a turn on (but that mostly has to do with impatience and passion than the locale itself).
A = Aftercare (what they’re like after sex)
Much of the same, only calmer, lower energy. There's a smooth, near seamless transition from sex to post-coital proximity. Likes laying down with a partner, catching his breath, talking, holding, kissing. Always keen on some kind of physical touch afterwards - the alternative feels far too cold and dispassionate to him, he may even see a partner immediately up and leaving as an expression of regret or disgust based on past experiences. Depending on intimate intensity, he'll check in too - fetch water or food in true healer fashion, even carry a partner if the mood's struck them outdoors or someplace uncouth. If he has the energy and audacity, he'll ask for another round.