What is the name or full vid of the first clip,

The name of the "girl" in the first clip is Alex Isadora, here with Doc Chocolate in a scene titled I fuck this black cock and he spanks my ass so good on her account on ManyVids - and titled Alex Isadora's FIRST BBC Experience with Doc Chocolate on his account on ManyVids, both released in the last two weeks.

She announced the release on twitter - and this looks like the sequence in OP's redgif:
https://twitter.com/alexisadoraxxx/status/1744828979654041862

I don't know if the full scene was already leaked somewhere...

Bonus

They actually did a podcast together accompanying the porn scene - you can listen to it here:
https://bullsandqueens.com/podcast/096-alex-isadora/

References:
https://www.manyvids.com/Video/5326885/I-fuck-this-black-cock-and-he-spanks
-my-ass-so-good
https://www.manyvids.com/Video/5340921/Alex-Isadoras-FIRST-BBC-Experience-w
ith-Doc-Chocolate

Alex Isadora
https://twitter.com/alexisadoraxxx
https://onlyfans.com/alexisadora
https://www.manyvids.com/Profile/1007619738/alexxxisadora/Store/Videos/

Doc Chocolate
https://www.instagram.com/docchocolatebbc
https://twitter.com/bullsandqueens
https://onlyfans.com/chocolatedoc
https://onlyfans.com/ChocolateVIP
https://www.manyvids.com/Profile/1005840286/doc-chocolate-bbc/Store/Videos/

The name of the "girl" in the first clip is Alex Isadora, here with Doc Chocolate in a scene titled I fuck this black cock and he spanks my ass so good on her account on ManyVids - and titled Alex Isadora's FIRST BBC Experience with Doc Chocolate on his account on ManyVids, both released in the last two weeks.

She announced the release on twitter - and this looks like the sequence in OP's redgif:
https://twitter.com/alexisadoraxxx/status/1744828979654041862

I don't know if the full scene was already leaked somewhere...

Bonus

They actually did a podcast together accompanying the porn scene - you can listen to it here:
https://bullsandqueens.com/podcast/096-alex-isadora/

References:
https://www.manyvids.com/Video/5326885/I-fuck-this-black-cock-and-he-spanks
-my-ass-so-good
https://www.manyvids.com/Video/5340921/Alex-Isadoras-FIRST-BBC-Experience-w
ith-Doc-Chocolate

Alex Isadora
https://twitter.com/alexisadoraxxx
https://onlyfans.com/alexisadora
https://www.manyvids.com/Profile/1007619738/alexxxisadora/Store/Videos/

Doc Chocolate
https://www.instagram.com/docchocolatebbc
https://twitter.com/bullsandqueens
https://onlyfans.com/chocolatedoc
https://onlyfans.com/ChocolateVIP
https://www.manyvids.com/Profile/1005840286/doc-chocolate-bbc/Store/Videos/