Movie: Truly Nice Ass 6: Fun Buns
Scene 2:
Bruno SX and Thomas Stone are the two unidentified guys in scene 2. Bruno SX and Thomas Stone can be seen in the scene 2 screencapture pictures, and xxxmoviereview.com confirms that they're both in scene 2.
Scene 4:
Correction: Nikol is the girl in scene 4, not Janavi. Nikol is the blonde (wearing black lingerie) pictured on the bottom righthand corner of the front boxcover. She can also be seen in the scene 4 screencapture pictures.
Besides Truly Nice Ass 6, Nikol was in another DVSX release called Jungle Love 4: In The Mix. Nikol is the blonde pictured on the lefthand side of the front boxcover. She can also be seen in the scene 5 screencapture pictures with Jennifer.