Brother pretends to be sisters bf for wedding?

[Blips4chips]

I’m looking for this story about this brother who is asked to pretend to be the sister’s boyfriend for her friends wedding. They end up fucking in their shared hotel with their mutual friend. Any ideas?

 

[astuffedshirt_perv]

Craptain planet has a story My Naive Fiancé Goes to Prom that is very similar to this description but the event is a prom afterparty, not a wedding