Dr. Light

"I don't think I've had the pleasure of meeting the Doctor here, so I might as well introduce myself," you say.
"Come and get me," she replies.

You go over to her and fondle her tight ass. She purrs in delight.

"In that case, I'll take Canary. She loves this stuff," Power Girl says, shaking her strap-on dick.
"You know it," she replies.

Power Girl goes over and starts to rub Canary all over. In her tightly-bound state, she can only lay there and enjoy it.

Thanks to her position, you can easily pull down the Asian Heroine's bikini bottoms. She shakes her hips as you do it and steps out of them. You rub her pussy with your cock and she shakes her ass at you in response.
Canary is wearing bikini bottoms with strings on them, allowing them be removed easily. Power Girl rubs the strap-on against her pussy, teasing her. She is wet.

"If you're both ready," Wonder Woman announces, "We will start on the count of Three. 1....2....3!"

You and Powergirl both penetrate the Superheroines in sequence! You both start to fuck them.

"Harder! Fuck me harder," Dr. Light shouts, "Pull my hair."
"Fuck me harder," Black Canary says, "I can take it!"

You start to really pound the Asian Heroine hard. You grab her bound wrists with one hand and pull her hair with the other!
Power Girl is careful not to use her full-strength (obviously!), but does pound Black Canary's pussy real hard.

Wonder Woman walks around the front of the benches and looks at the two Heroines.

"Ooh, they look like they're both close," she announces, "Who will win Round 1?"

You realize that you need to do something more to guarantee victory...