Safeword: Mayday: A CONTEMPORARY BDSM MÉNAGE ROMANCE (Safeword Series Book 10)

Heather’s soul soars when she’s hang-gliding, skydiving, kayaking, or piloting her helicopter during search and rescue missions. She’s taken the term adrenaline junkie to a whole new level. However, she’s never enjoyed sex and never had an orgasm.
Instead of giving up on her, Kyle, a long-time friend who convinces her to be more, brings an experienced Dom in to help. Marcus explains she only enjoys extreme sports, so she needs to try extreme sex since the normal kind hasn’t worked. Marcus is all Dom, and helps Kyle bring Heather alive sexually.
Just when Heather thinks she has everything figured out, she learns the two men shared a girlfriend for years while they were in college.