You cannot look away as the croc shows off its massive, puckered anus. Its package shakes in the meantime, swung about by the reptile's slight motions while it stands directly over you. The star shaped opening pulses, as if sucking in air, while the familiar grinning head keeps an eye on you. Seems like he's planning something...
The tree-like legs then bend as the enormous tail of the gray-guy shoots straight up, he slowly lowers his rear. The fleshy anus then opens, spraying dirty air directly onto everything beneath it, including yourself, and you raise your hands against the flow before the gray posterior meets the ground, you are pressed down by his anus! The orifice wraps around you, as if giving a loving embrace, and slowly draws your tiny body into the croc's rectum!
The scent within burns your nostrils, you really should hate the putrid smells of old flatulence and dung, but... you find yourself wanting more of it. The rectal entrance continues to welcome you inside, pressing its slimy folds of flesh against you until the last outward sign of the shrunken person is your foot. As your foot slides past the protruding flesh, the crocodile roars in triumph, having fully captured the tiny tourist. You hop to your feet, eager to rub yourself against the smelly walls! Even if you are mostly in darkness, you know that the anus was behind you. So you push off the walls and turn around just in time to see the anus close back up, and the last burst of light fade into thin dots. This is fine, you didn't want to leave anyway, that dark circle is probably one of the more sensitive areas near you, that's a good place to start...
You clamber your way back toward the entrance and press against it, your hands squish into the soft flesh as you massage the closed anus. The darkness doesn't get any brighter, but you feel a hot wave of nasty gas pass by you, rippling the walls as it spews through the mostly closed sphincter and under the croc's still raised tail. This is followed by another sputtering blast of air, ending with a squeaky "Puuiip" as the enormous tail comes back down, throwing your interior confine into further darkness. You are now at the mercy of the massive reptile, who then...