Two pomelos, the largest of the citrus family. They are approximately the size of a cantaloupe.
Dad (think a six-foot something Santa Claus in blue jeans and a T-shirt that says "Friend") with pomelos stuffed under his shirt. The effect is of a proportional set of falsies. Eldest Aunt cradles one, to keep it from falling out the bottom. Eldest Aunt is wearing shorts and a short floral crop-top/jog bra.
Dad smirks down at his pomelo-stuffed T-shirt. Eldest Aunt cradles one pomelo to keep it from falling out the bottom, while grinning widely in a near grimace (her usual face for posed pictures). They face Guide Dog Aunt (out of frame) as she photographs them. Mama is in the background, looking dubious at this whole state of affairs.