Now this is where it gets confusing.
The girl with the cock between her tits IS
Adele Stephens:
(the 17th shot)
is from a different FFM classroom set.
This set:
http://www.sextazy.net/new/series268k/freeones.html
all the other shots are with Mercedes Lynn and another girl - not Adele.
Adele has red studs in her ears the other girls have big hoops - very odd.