The P spot is the prostate which if it is stimulated you will get a erection.In some men it will help once you already had intercourse to stay harder a little longer but it also depends on your prostate if it is healthy.You can buy the sex toy just for the P spot which is like the different sizes of balls starting out small to large which is for women.The P spot sex toy is almost the same way but it does not have balls going from small to large.Instead it has curves which starts out small at the tip and going up to the end large.Here is two website which you can find the P spot sex toy.If any of these website do not have it which they should have let me know and I'll going back to them and post the link on the forum.Make sure when you go to use the P spot sex toy to lub it up really good to avoid rips in the anal area and make sure to relax the tissues in the anal area too.
Here is the websites below.
Healthy and Active
Better Sex - Adult Sex Education - Adult Sex Toys
Notice: All the website I have posted I am NOT employed and or I get and money from them forrecommending their websites.I am jsut helping everyone out to have a better sex life with this information.