What a coicidence: a movie with Loni Sanders!
Beside this, we can try a reasoning.
The scene is the third, involving R.J: Reynolds, Jennifer West and a brunette:
http://www.pixhost.to/show/1868/5304...ions_dvd_s.jpg.
Basing on IAFD's Cast List and Scene Breakdowns (
http://www.iafd.com/title.rme/title=...onfessions.htm) and given that the other girl seems to be jennifer West (
http://www.vintage-erotica-forum.com...=jennifer+west), our girl must be the brunette without name.
Now, in the Cast List we have four names without pic that are not inserted in the scene breakdowns: Hilda Kauffman, Patty Bridges, Roberta Marlow, Sandra Thompson. They all are credited of just this film. Probably 3 of them have not sex roles and one is our brunette.