Ashley Lane goes completely berserk from the vibrator. Near the end, she uses the "yellow" safeword and he tells her: one more. After that one, she uses the "red" safeword and he persuades her to endure one final one. At the very end, she says "I hate you
Found out that the model in this video has never done anal before and did not want to, but when he pushed the dildo inside her ass she decided against using her safeword because she was afraid she wouldn't be invited back. Sound link in comments.