Hello! I am Shelly. I have 31 years old. I love porn. My favorit is Erotic, Swinger, Hentai
Would you fuck an older lady?
Sperm Meets Egg: Weeks 1 to 3 of Pregnancy
Although it is happening every hour of every day, all over the world, the story of egg meeting sperm is still a tale worth telling. Cervical mucus may prevent sperm from passing into the uterus, but during ovulation when the egg is released from the ovaries, the mucus gets thinner and lower in pH. These changes make the mucus a great transport medium for the sperm, and help the sperm continue traveling. Cortical granules filled egg and sperm fertilization animation enzymes line the inside of the cell membrane, and will help make sure that only one sperm can egg and sperm fertilization animation the egg. Further, the accuracy, currency and completeness of the information available on this Web site cannot be guaranteed.
Hello! I am Lilian. I have 29 years old. I love porn. My favorit is BDSM, Bukkake, Bisexual, Sex position
How about a nice blowjob?
Animation: fertilisation of egg by sperm
Eggs remain viable for about 24 hours after ovulation and sperm usually survive for about hours inside the female reproductive tract, so fertilisation is most likely to occur when intercourse takes place in the period from 2 days before ovulation to one day afterwards. When the developing embryo reaches the uterus — which occurs about 3 to 6 days after ovulation — it is made up of about 16 cells, and called a morula. Egg and sperm travel in opposite directions to meet in most often the fallopian tubes. Watch as the ovulation process occurs, egg and sperm fertilization animation then millions of sperm swim upstream on a quest to fertilize an egg.
Hi! I am Josefina. I have 34 y.o. I love porn and sex. My favorit is Mature, Gangbang, Shemale
Wanna hook up?