Because she's about to orgasm

Carol is naked in the bathtub spidey can see her athletic body her perky firm round 38 DD breasts with pink nipples which were hard her toned bubbly juicy ass her pussy that she had completely shaved leaving only a little blonde pubic hair which she had trimmed into the shape of her lightning bolt symbol. She has 4 fingers going in and out of her pussy as she keeps gasping.

Carol: Oh! Oh! Oh Shit!! OMG!! IAM GONNA CUM!! OHHHHHH SHIIIIIIIIIIT!!!!!!

She screams out as she cums in the tub she opens her eyes and looks up to see Spidey and turns bright red with embarrassment!

Carol: AHHHHHHHH SPIDEY GET OUT!!!!!

Spider-Man jumps down and runs out the door as Carol screams at him.