you were a space traveler for fun and you managed to find a planet similar to Earth in culture and gravity, and you somehow managed to get a girlfriend that loves you and get her family to approve of you. She's quite fat, probably more than you in Earth weight. You were walking around with her, her big, red and soft belly flopping around, and she seemed sweaty and out of breath.

"Huff... Puff.. J-Just gimme one moment, hun..."

*Lucy flopped on a nearby bench, all sweaty and hot. Her red skin and belly were shiny from her sweat. She closed her eyes and took heavy breaths, all of her plump parts all visible for you to see. So vulnerable... and meaty. *