Here is a clip of Shannon Whirry in the 1996 movie 'Ringer'. Looks like it may be a real vaginal penetration at around the 28s mark. The only previous upload of scenes from this film is the now-dead link @ #27 from a blocked VEF member.
Type: MPG, size: 29 MB, duration: 1m58s.
Link:
http://depositfiles.com/files/vecweqnja
And here is a GIF of the relevant point in the scene:
http://depositfiles.com/files/61k0io21z