I know Futurama is known for its science accuracy so this question goes to the Electric Engineers of Reddit. Bender is looking at this robot porno and says "You're a bad girl".
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Gay robot from Futurama Gallery
Leela Turanga has brought her own robot n this sex orgy – Futurama Porn
Leela Turanga captured and fucked dirty robot – Futurama Porn
Why Not (Sex With) Zoidberg? The All-Female Futurama Porn Is Coming | Topless Robot