Looking for some hentai titles

So I seen this pop around from a certain Paid hentai site on the net. I don't recall ever seeing this, I'm gonna guess they are old.

Title #1: The Teacher and Vibrator (LOL)

Title #2: Massage My Boobs Elf Chick (;D)

Title #3: Semen Baby? WTF...

Title #4: I actually don't have a video for this one, but all I remember is as followed. It's 2 episodes. One of the girls has a scar which she hides with hair. The also gets her nipple pierced. There is also some Comicon style shit that goes on and they use one of the girls (voice actresses?) ass as a pretend Onahole while she is hidden under the table. This is all I remember...

Big thank you in advance.

1. Mesu Kyoushi: Injoku no Kyoushitsu - 2
OVA (2009-2010) - 3 Episodes
JPTitle: 牝教師 淫辱の教室
EPName: Volume 2
Est Time: 00:08:16 / 00:27:29

2. Himekishi Olivia - 2
OVA (2013-2014) - 2 Episodes
JPTitle: 姫騎士オリヴィア
EPName: Volume 2
Est Time: 00:06:14 / 00:25:23

3. Gakuen 3: Karei Naru Etsujoku

Thank you. Ya da Boss :)