The alien is quite susceptible.

Dr. Thompson begins her act.
She grabs her big tits and presses them toward Starfire's face.

She begins to shake them slowly and rhythmically.

It works quite well.

As she'd later prove (and present as a Paper to her Colleagues), Aliens of all kinds (that she's tested) may often look humanoid, but lack a certain gland in the brain that helps humans resist hypnosis.

Aliens are easy prey.

"Your legs are tired. Get on your knees."
Starfire obeys.

She has an easier time now, pointing them more directly ahead at the Titan.

"You love my tits."
"Love...your...tits."
"They make you weak."
"Make...me...weak."
"They make you want to obey."
"Want...to...obey."
"They make you want to submit."
"Want...to...submit."

'This is working swimmingly! I need to figure out why! Just later though.'

"Your hands are locked behind your back. The metal holding you is too strong.
Your legs are bolted down the same way.
Only I have the button to release you. You know that you deserve this.
If you want to be free, you must beg me for help. You will awaken in 3...2...1..."