>>121348529The in universe justification:
He real name is Gwen Poole, when she went to the super hero costume shop she wrote this down on the order form. The seamstress in the back said "Gwenpool? Alright, slutty deadpool costume then!" and made her outfit. Said seamstress also ran the mercenary outlet Gwenpool took jobs from, and listed her as Gwenpool.
She also isn't wearing pants because pants use too much fabric, according to the seamstress.
