Film Production Date: Unknown
Film is in: Color
Setting: Probably pre-Internet
Actors: VERY MAYBE Sarah Michelle Gellar and Matthew Broderick, both quite young (teens)

I have seen only one scene of this movie (or TV series episode?)
that circulated the net as animated GIF with (yellow/white?
subtitles), maybe on imgur.com or a similar site.

The scene goes like this:

• A young girl and a young boy (both 12-16, I’d guess),
  both half-dressed, seemingly a bit shy and totally clueless about
  sex, try to have either sex or perform a handjob on the boy. They
  stand in a simply furnished room with (IIRC) not much more than
  a bed, a chair and maybe a table.

• They alternately make suggestions (more like guesses) how to
  go about it. When the boy makes a suggestion, he repeatedly
  refers to horses (“like I’ve seen horses do”, something along
  those lines).

• One of the suggestions is that the girl should stand on a
  chair.

• At one point, the girl tells the boy to stop making references
  to horses.

• At one point, the girl removes her bra (no nudity is
  shown, thanks to the camera perspective / clipping).

• At the end of the scene, the girl is seen having her hands near/in
  the boy’s genital area and remarking something like “oh, only so
  little (liquid)?”.

The girl had a “smiling dimple” that reminded me of Sarah Michelle
Gellar, but I’m absolutely unsure. Even more so with Matthew Broderick.

Any help appreciated!