G spot position :: does not allow to enable it during sex. Excluding cases, when penis has curved shape during erection. That is why you should choose special position for G spot stimulation. Usually position from behind is advised, or woman on top when she can control movements of the partner. The most effective stimulation is reached with the help of special G spot vibrators. There is a wide spectrum of such sex toys today. Before buying, it's better to study your body and sensations. The peculiarity of G spot vibrators is their curved shape. They may have either slightly or sharply defined curve. G spot stimulators may be thin as a pencil, or thick, short or long.
Masturbation and the attitude :: of some Americans to it roots in history. There exist many evidences proving that just few centuries ago some parents thought the masturbation is a sin or leads to man diseases. They compelled their daughters to wear gloves made of special material called steel wool (like scourers) at night. In addition, they forced them to pour a powder on genitals that made all touches to them very painful. The boys were forced to wear at night metal chastity belts. Of course, the erection is such "clothes" was also painful. Sometimes their methods were very brutal, they new no bounds. To prevent masturbation they pieced the foreskin of their sons with a wire and soldered the ends. Thus the foreskin didn't move. Parents really believed masturbation leads to madness, illness, blindness, impotence and sexual pathologies. In our days it was already proved that it's not true.
Using warming lubricants :: you can apply it on every part of your body. For additional sexual pleasure, you can rub warming lubricant into the breasts or the buttocks. Give the warming lubricant a minute to heat. You can massage it to increase the warmth. Blowing on the genitals after warming lubricant has been applied, intensifies the heat. If you notice any irritation on skin after applying a warming lubricant, stop using it. Maybe it is allergic reaction. Anyway, consult with a doctor. You can also choose a flavored warming lubricant. Popular flavors include pina colada, cherry, strawberry, watermelon.