Try and struggle free!

You don't exactly feel like getting tentacle raped today, so you try your best to break free of the vines. Unfortunately, this only serves to irritate the Tangela; even more vines extend out from its body, coiling around your wrists and tying them together. The same happens to the Pikachu, who herself has been trying and failing to escape.

With your arms bound, you have no way of stopping the vine from penetrating you. In a last ditch effort, you squeeze your legs as tightly together as possible, but even that's thrown for a loop when the vine holding you by the waist starts poking at your ass. The Tangela lets out a low grunt as they shove their vine inside your tight sphincter, causing you to cry out in surprise... and judging by a similar reaction from the Pikachu, they've likely done the same to her too. Presumably the Kirlia as well, though they haven't regained consciousness yet.