Is one distinct from the other?

leg_lock shows one character's leg (or legs) around the other,usually in a parallel position,such as the missionary position

leg_wrap shows this as well

Should they be aliased?

leg_lock has 65 posts
leg_wrap has 40 posts

leg_wrap -> leg_lock

or

leg_lock -> leg_wrap

I prefer wrap. Leg lock is a wrestling move.

As above.

I prefer the latter most alias.

Same here,'lock' really does sound like someone's about to get a joint dislocated

Alias of leg_lock -> leg_wrap then?