IS THIS EVEN SUPPOSED TO BE SEXY?
I mean, I know sex is honestly kind of silly when you get down to it. But this is a comedy act. When she orgasms her powers explode out from her sending lightning around the room, and he uses his powers to grab and absorb the bolts. Then when he orgasms there's flashing colors and lights.
Also, every time I hear a boner described as "steel wrapped in velvet" I wonder if the author has actually ever encountered one. Because... it really sounds like something someone would write who's just guessing at what one would feel like.