Biff removed his t-shirt and then pulled down his track pants and boxer shorts in one go. Standing naked now, he blindly grabbed a pair of panties out of his drawer. He stepped into them and had them halfway up his legs before he had even looked at them. They were a very girly pair, white material for the main part, with red ruffles all around the side and on the back. There was a small bow at the front on the waist band. Biff wished he had picked a less flashy pair but nobody would see them so he just pulled them fully on. They sat very snuggle on his hips and the ruffled behind stretched tightly over his butt.
He rummaged through the drawer again and found a matching, white baby doll nightie with similar ruffled side and a delicate lace pattern around the built in cups for his breasts. He pulled it on over his head, marvelling at how his breasts filled the cups, on the verge of spilling out. The rest of the nightie was fitted and clung tightly to his narrow waist and tapered out to flow around his hips. It wasn't long enough to cover his panties and swirled around him every time he moved. He was just finished adjusting it when he heard Jon stirring downstairs. He didn't have time to grab a dressing gown, he just hurried straight downstairs, breasts bouncing and jiggling on each step.
He didn't stop at the bottom of the stairs, instead running straight into Jon who was starting to moan, close to tears.
Jon looked up groggily and saw Biff come in in his nightie, hair down, framing his feminine face. Jon squinted and in a confused squeak said, "Mommy?"
Biff grabbed him and lifted him for a hug, reassuring him, wanting to stop Jon's emotions getting the better of him. As he held Jon in his arms he could feel the weight of his diaper which was obviously soaked.