Very confidently swallows a very large cock, why should we be surprised that she easily takes it in her other holes too! By the way, in her mouth she takes the cock deeper than in the front and in the anus! So I think a long dick isn't important to this woman, a small, decent thick one will do.
In principle, what is surprising, they are all Germans, they like sex and when they fuck hard, so the person in the video and coitus eagerly with these two good-looking men, who ably fuck her in her slutty holes. Judging by her moans she really likes this whole process, and she is in a pleasant shock of emotions, this sex in a trio they will have more than once.
I wouldn't mind a double penetration.