Here are some playful innuendos that can work in both a gym and a bedroom context starting with "3 sets":
1. "I can handle 3 sets, but how about we increase the intensity?"
2. "After 3 sets, I'm feeling the burn. How about you?"
3. "Let’s do 3 sets; then we can take a break and stretch it out."
4. "I always aim for 3 sets before we switch it up."
5. "If you can go for 3 sets, we can really work up a sweat."
Feel free to mix these up or use


