Options:
1. The posture would be awkward, but the image could be great, if the poon sits in a wood chair with straps.
2. A table with straps where she gets oral injections.
3. No furniture, but at the beginning she's in a straitjacket. She begs to have the jacket off so she can masturbate. At the end the guys are exhausted. She sucks the last bit of cum off the floor because she needs the energy to escape.