There ought to be a tag for this position

the most accurate tagging i can think of is "standing_missionary." but that sounds bulky and rare, i would say combination of leg_lock hug vaginal standing straddle ass_grab would surfice

Considering how common this position is in American porn, I should think it would deserve a tag if it doesn't already have one. Maybe I'm biased because I feel this is a seriously awesome position and I want to try it; I'm just not strong enough to do so with my current partner.

This is called the ekiben position in Japanese.
Ekiben = train station boxed lunch = a sex position standing and holding her up like ekiben sellers.