Absolutely

Despite his conscience telling him not to, he reached into the basket and picked them up. They felt heavy in his hands, despite being pretty small. He quickly looked down the hall to make sure he was alone, and proceeded to inspect them. They were covered in lace and were pretty sheer, and seemed to be either a thong or really cheeky panties. This didn't come as a shock to him, as Abby was popular and spent a good amount of time hanging out with boys.

He lifted them up and imagined her walking in them as his pants began to feel tighter. Alex had a history having a panty fetish, but had never acted on it with his sister, only a few past girlfriends. Against his better judgement, he lifted them to his face and smelled them. The scent was strong - too strong, He looked inside and found that they were soaked.

Alex heard the front door of the house open and ran to his room, pink panties in hand, He shoved them under his pillow, and sat on his bed just as Abby walked up the stairs, He heard the familiar sound of a door shutting and pop music playing, and knew he was safe for now. He pulled them back out and couldn't stop staring at the large dark spot on the crotch.