Spit Trail Kiss

Sometimes a kiss between two characters isn't sexy enough. So what do you do to spice it up? Just make it a lot messier and make it clearer that fluids are being swapped with a spit trail. When the two subjects separate from their kiss, you see a strand of saliva between the two in order to make the kiss at least a little bit more explicit.

A few Hentai have this trope, often leaving it ambiguous if the trail is of spit or... something else.

Definitely a Your Mileage May Vary on how sexy the act actually is. Looks similar to Phlegmings, yet characters who show one of these will rarely show the other.

Examples of Spit Trail Kiss include:

Animated Films

Leon and Lashawn have a first kiss like this in Bebe's Kids.

Anime and Manga

This can be seen clearly in the official promo for the Girls Love Anime, Kuttsukiboshi.
Shizuku gives Natsuru his first kiss this way in Kämpfer.
Bible Black had a Win the Crowd moment when this one happened early in the second episode.
Chikane and Himeko in Kannazuki no Miko have one of these near the final episodes.
The two teenage kids from the beginning of Hellsing share a kiss that comes out like this. It also happens again between Seras and Pip, which notably combines this trope with Blood From the Mouth.
- Also happens when Integra forces Seras to lick blood from her cut finger. Does This Remind You of Anything?
Happens in the first episode of Speed Grapher when Kagura kisses Saiga.
Used frequently in Kiss X Sis.
Used in chapter 12 of Koharu no Hibi when Koharu plants a Forceful Kiss on Akira.

Film

The infamous kiss from Cruel Intentions was one of these as was every parody of it (notably the one made for the MTV Movie Awards).
The main characters shared one of these in A Life Less Ordinary.
Rent had one between Angel and Collins after singing I'll Cover You. It was edited out before release though.
A rather funny, though disturbing, male on male version occurs in The Brother Solomon.
Angus Thongs And Perfect Snogging features one during a Practice Kiss.

Western Animation

Gangstalicious has one of these with a former prison mate in an episode of "The Boondocks"
On Bob's Burgers, Bob tried to show his wife Linda he's a good kisser and this was the result.

Visual Novels

An image from the first game of the Sono Hanabira ni Kuchizuke wo series shows Nanami and Yuuna having a pretty sloppy kiss like this.