We don't have to tell you how this one applies to the bedroom do we? Cause this one screams Gettin' Lucky! In addition to helping in the bedroom, it also helps to keep you mobile and let your hips move better.
Start in a seated position on the floor or bed with your legs out in front of you. Slowly bring your legs out to the side, trying to move both legs out to the side equally so you stretch both sides. Hold this position for 30 seconds. For a deeper stretch you can bend over at the waist, just make sure you aren't rolling your back forward.