You hardly even finish transforming into a female Anaconda before several Zoo Keepers pick you up and put you into a large display case. Once inside you quickly realize that you are not alone in it. You see an even larger male Anaconda begin to rapidly slither toward you.
Outside the display case you see that there is now a large crowd gathered around it looking in. And you suddenly realize why there is such a big crowd. The mating of Anacondas is a very rare thing to witness, you realize in terror.
And suddenly the male Anaconda makes it very clear to you that mating is what is indeed on his mind as he suddenly and very forcefully flips you onto your long snake back, exposing your desired belly area that the male quickly slithers on top of, pinning you in place. The male then gently but firmly latches on to your snake neck with his mouth, preventing you from rolling him off of you.
Then suddenly you feel the male Anaconda painfully penetrate your scaly virgin snake pussy. You let out a long a deep hiss when this happens. If the crowd had the ability to understand snake talk, the hiss would have been translated as, "EEEEEEEEKKKKKKKK!!"
....
Later, when the male Anaconda was finished, the Zoo Keepers returned and moved him to a different display case. Then a Zoo Keeper attached something to the front of your display case. With shock you read what it says, "Pregnant: 3 months until expected Egg Laying."