Okay hear me out go to amazon buy this spiderman outfit but cut the cock part out.

https://www.amazon.com/Riekinc-Spandex-Halloween-Cosplay-Costumes/dp/B07W8Y2FDP/ref=sr_1_7?crid=12M5IN7F5MFH9&dchild=1&keywords=goofy+costume+adult&qid=1586694011&sprefix=goofy+co%2Caps%2C160&sr=8-7

Go up there when you think she's busy. I mean you can't be mad at cock out spiderman. If she's crazy she would be too weirded out to do anything giving you time to escape. If it's something cute or sexy well say something romantic and its good times for cock out spiderman.