My ex (26F) and I (34M) were on a camping trip with my family. Our air mattress sprung a leak and our tent was very humid so we ended up sleeping in my aunt & uncle's camper since they had an extra bed. The next morning my aunt & uncle and parents were already up and sitting outside and we were just laying in bed. We started fooling around a bit and before long we both had our pants off. My relatives were sitting at a picnic table right outside the window that our bed was against, with just a flimsy curtain that didn't cover the window. I got on top of her and we slowly started fucking missionary as quietly as we could when my aunt came in the camper. There we lay, me hard and inside her with again, a flimsy curtain over the opening to our bed area. I could see my aunt's feed under the curtain as it didn't come all the way down to the bed. She got something out of the fridge and went back outside and then we resumed our fucking and I finished inside of her.