Well, if you have any interest in trying it, my guess is that he'd probably be into being called a bad dirty little boy, tied up, made to play with his penis, spanked, blindfolded, and in general dominated by a woman who tells him exactly what to do, holds him down, and climbs on top for a rough ride, slapping him if he protests, and then comforting, praising, and reasurring him like a child after he climaxes.
If that is the case and his sexuality is strongly limited to being a submissive and it is also the case that LFL is mostly a submissive herself then how is that any different than if he was gay? Basically, they're gay for each other.
"Tell me, what is it you plan to do with your one wild and precious life?" - Mary Oliver