Sexual intercourse animation

In the male, blood flows into the penis, causing it to become erect; in the female, the vaginal walls become moist, the inner part of the vagina becomes wider, and the clitoris enlarges.

japanese pregnant hentai

In the plateau stagebreathing becomes more rapid and the muscles continue to tense. The glans at the head of the penis swells and the testes enlarge in the male; in the female, the outer bundleofbrittany twerk contracts and the clitoris retracts. At orgasm the neuromuscular tension built up in the preceding stages is released in a few seconds.

Intercourse - Wikipedia

In the woman, the vagina begins a series of regular contractions; in the man, the penis also contracts rhythmically to expel the sperm and semen ejaculation. The succeeding resolution stage brings a gradual return to the resting state that may take several hours.

teen short hair ude

In the male, the penis shrinks back to its normal size; in the female, the vagina and other genital structures also return to their pre-excitement condition. The resolution stage in men contains a refractory period of several minutes to a few hours, during which the man is incapable of further sexual arousal.

Photo Gallery: Illustrated Intercourse - SPIEGEL ONLINE - International

Women have no such refractory period and can quickly become aroused again from any point in the resolution stage. Stock Browse and buy exceptional, royalty-free stock clips, handpicked by the best. New video Upload Create a video. This is exactly the kind of thing we'd do if you gave us any kind of equipment—test the limits of it.

Subcategories

Also, can you imagine trying to have sex in an MRI tube? That's got to make the back seat of a compact car feel like a king-size bed by comparison. The additional blood makes the penis stiff and hard, or erect.

When a woman becomes aroused, the vaginal lips and clitoris swell, the nipples on her breast kanra cosplay erect, and the vaginal walls fill with blood. The vagina becomes lubricated, or slippery, by the passage of fluids through the vaginal walls.

true amateur natural hairy red head sucking cock

Look at their objective! Objective: To find out whether taking images of the male and female genitals during coitus is feasible and to find out whether former and current ideas about the anatomy during sexual intercourse and during female sexual arousal are based on assumptions or on facts.

This is exactly the kind of thing we'd do if you gave us any kind of equipment—test the limits of it.