Pillows are equally suitable for boys and girls, and making love to a soft pillow can be very pleasureable.
Pillow Humping 101 for Girls: Give That Pillow a Workout
In masturbation, ejaculation into thin air may be disappointing, but cumming against your favorite pillow may be very satisfying.
Pillow humping is also very safe sex, because you cannot catch a STD from your pillow unless you share it with somebody, and you do not need to wear a condom because you cannot get your pillow pregnant.
If you are a guy, you can thrust between two pillows, the mattress and a pillow, you can fold the pillow and thrust into the groove or wrap the pillow around your penis to make a tube. Jim and Jenna both do pillow humping regularly, but their normal sex life is still. A strange fetish of masturbating with a pillow.