Since he's bisexual, he'd do well in a threesome, but just a man or just a woman would be fine too. So if anyone wants a shy, sweet guy who'd be completely devoted to them, Lokkun's your guy.
All I have at RBW are Bahji (already sorta taken), Eirlira (Yeah...don't think she and Lokkun would ever go there) and Lanniya who really isn't ready for that sort of thing yet. :(