Delightful sitter Melanie sees the bulge in your diaper. She knows you always get a big stiffy when she comes over to care for you. She is in a really cheeky mood and starts to play with your willy. She gets you so big and hard and teases you for the longest time, bringing you right to the edge of cumming then chastising you for having a stiffy and backing off. Her teasing is so frustrating and seems to go on forever then finally, because you are her favourite, she lets you cum. You blow a huge jet of cummies into the air surprising you both!