Polyjuice

Steam and the scent of soap rose from the bath as Dumbledore drank the potion. It tasted a bit of badly fried food and he fought not to spit it out. He wanted the full hour. He lowered himself into the bubbles, seized some soap and his shampoo.

For twenty minutes, he scoured his new body clean. He climbed from the tub, drying his hair vigorously with a towel and stood before a full length mirror. He sighed, touched his still-damp hair and ran a hand down his torso. The skin of his member was smooth and soft as the skin of his eyelids. He stroked it and it hardened a bit, but he didn't come. He looked back up at his (to him) beautiful face and planted a gentle kiss on the mirror. The hour grew late. He whispered the name of his unrequited love.

"Severus, my angel."