italian professors

first day of the weekend, first day of relax. pretty basic, tourist-like day, spent with two friends at subsequent times.
woke up late (9.30), then met the first friend scientist, Milica from Serbia, who has been in Tsukuba since about two years. she took me strolling in colourful Harajuku (sort of Camden town in Tokyo), then we had a fabulous okonomiyaki for lunch.
later on I went by myself at the Yoyogi park, a twice interesting place. firstly because of the swarms of young cosplayers which can be admired during the weekend, with their fancy dresses going from manga characters, to "Gone with the wind"; secondly because of the Meji Jingu shinto temple, where on weekends one can follow traditional japanese weddings one after another. I saw two.
around 8pm I met another fellow scientist, Nicola, another italian prof from MIT in Boston, whom I hadn't seen in a while. it was his first time in Tokyo, so I took him for a ride in the sparkling night of Shibuya. we had dinner in a very nice kushiage (a place where you eat practically anything that can be fitted on a skewer), and then we strolled around the many lights of the city. we had a pretty good time until late (but see the highlight of the day).

highlight of the day: a japanese girl teaching two italian physics professors how to masturbate.
The famous Condomania store. Every tourist knows that in Shibuya there is this tiny little store called Condomania, stuffed with condoms of all kinds, lubricants, and other kinds of sex-helper implements. the store is run by a slim girl, with perky eyes and a seasonal wool cap. me and Nicola start making jokes about this and that, and the girl (a very good seller) follows on. then, I had the bad idea of saying: "and what is this?" pointing to a plastic egg. the girl goes: "let me explain you". she opens the egg and pulls out a sort of rubber cap shaped like a penis head. "this is to masturbate, it gives a real great feeling: see?" (she opens wide the rubber) "there are all those tiny tentacles inside, you put your penis here, close this, and masturbate, like this" (gently mimicks the masturbation with her hand). I insist, pointing at the small cylinder which she took away from the rubber, "and that's for...?". "oh, that is the lubricant!" she says. "Right, right, the lubricant..." (in the meantime, Nicola has bought a box of night-glowing condoms in the shape of Usahana rabbit). Then she says "You are from Italy right?" (Yes, was that so evident?) "I've been to Sicily once. Is Sicily in Italy?" We have some problem admitting that, but yes, Sicily of course is a part of Italy. "And what you do in Tokyo?" Nicola says that we are both physics' professors in two different universities. She says "So you are two genius!" Then she looks at the condoms Nicola is purchasing, and says: "That is japanese size: it will be too small for you!" Nicola tries to explain that he's not going to use the thing, he babbles something about collecting stuff from the countries he visits, but she insists: "We have size that is better for you, japanese too small !" 
Genius...? Size...? Certainly, japanese girls have some great expectations...