Simplify the following text for a Grade 11 native English-speaking person.
Original: The series , which aired from 27 September 2007 , saw Piper in several semi-nude scenes , including a lesbian romp and one scene featuring her saddling a client and riding him like a horse .
Simplified: The series , which aired from 27 September 2007 , saw Piper in several semi-nude scenes , including one scene featuring her saddling a client and riding him like a horse .