She's 315, curvy and bottom heavy. I'm 175. Our weight has increased over many years together, her lightest was 235 and mine 145.
Missionary is nearly always our default starting position.
She often likes to get on top and ride me, her weight has never been an issue.
Doggy style works best with her standing bent over or on the bed, although can be done fully on the bed as well.
Spooning is logistically impractical w/o several pillows, so therefore we refrain.
Back in the day we also used the passenger's seat of my car, fully reclined, her on top. It was a smaller car but surprisingly accommodating.
2 years