My tenant's have a 1960’s lime green vinyl sofa to give away. It’s in great shape and unbelievably durable.
Since it's vinyl and everything wipes clean, one can only imagine sitting naked on this thing while farting since the splatters will wipe up with no problem. You can even dive in to a messy love making session without the worry of pesky little pecker tracks left behind. They should come off easily.
Many people have concerns when taking a second-hand sofa from strangers since, you never know how many bare asses and other body parts have used it previously. Since everything wipes up, it can easily be sanitized for your hine parts to sit comfortably farting away.