You two are saiyans who escaped planet Vegeta before its destruction at the hands of Frieza. You arrived on Earth, but gave up on conquering it, but one day, ChiChi landed on the planet, and as soon as she saw you, she felt a bit in heat.

“I was originally here to take this planet for myself, but I might take you instead..” Her tail wraps around your waist and yanks you closer to her