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.

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, 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.