kennedy's win was based solely on oxytocin levels?think it really -- in that thing, looks make a huge difference. it has been proven that people respond more to attractive people. you know? i think that -- like sarah palin and obama carry the same type of star quality for their group you know, which is beyond their -- >> john: mitt romney, very attractive man. no one liked him. >> he was stiff. his personality was like the wall. it didn't work. that well. >> john: as long as we're talking about deeply attractive men, i would like to move on to the rising star of the conservative movement or is he? marco rubio and his bold bill for immigration reform. let's ask senator rubio you designed this bill. you built it with a gang of eight. it is your baby. do you support your own bill? >> well, obviously i think it is an excellent starting point. 95%, 96% of the bill is in perfect shape and ready to go but there are elements that need to be improved. >> john: it is his bill and now he's calling it a good starting point. julianna, is this the

. >> reporter: a team of researchers is asking if a spray containing the hormone oxytocin and yes, shot wouldn't go out looking for prescription for oxytocin nasal spray at this point if your marriage is in trouble, but it definitely is going to be an ongoing area of ongoing research. >> some studies found the levels increase when couples cuddle but can this love potion actually save a marriage? >> reporter: sounds too good to be true. would you buy it if you could? >> if it proves that it's going to work or it was a high percentage that it would work then i might. >> would you? >> no, that's weird. >> reporter: how big of a bottle would you need to get a happy marriage out of something like this? >> i don't think it comes in a bottle. >> reporter: love doesn't come in a bottle? >> no. >> reporter: it's been called nature's love glue a cuddle wonder drug. could it really be romance in a bottle like this? nothing says love like honey, pass the nose spray. for "good morning america," i'm a happily married cecilia vega, abc news, san francisco. >>> also, the bridal blowout. a question all

. >> so they are saying oxytocin. >> yes. so they are trying to develop whether you can snort this stuff. you don't have -- >> what's more romantic than that? >> if you don't have any juice for your husband and you are just tired. they say if you snort this it will give you back your mojo. >> or take restless leg syndrome medication. have you ever seen the commercials for restless leg, which is a condition for people. they have this medicine. if you are listening closely at the end where they try to rush through all the things. and if you all of a sudden have uncontrollable sexual urges, you know, see a doctor. jerry is going, yeah. jerry has probably had some experience with this. i have a good friend who had restless leg syndrome who shall remain nameless, eva, and she's in london right now. she doesn't care. it was one of the funniest experiences of her life. she took the medication and she is a very elegant woman. i'm telling you, elegant. elegant! she's dressed to the nines and very much in love with her husband, but a v

. >> so they are saying oxytocin. >> yes. at the end where they try to rush through all the things. and if you all of a sudden have uncontrollable sexual urges, you know, see a doctor. jerry is going, yeah. jerry has probably had some experience with this. i have a good friend who had restless leg syndrome who shall remain nameless, eva, and she's in london right now. she doesn't care. it was one of the funniest experiences of her life. she took the medication and she is a very elegant woman. i'm telling you, elegant. elegant! she's dressed to the nines and very much in love with her husband, but a very, yeah, controlled woman. well, let me tell you something. >> what happened? >> she said she couldn't walk down the street without going, i'm going to tear you apart. and anybody that came to the apartment, some delivery guy, she'd say -- it became a very big problem. she still loved her husband like crazy but she loved everybody else, too. she says she's never -- she said, i know it sounds funny and it sounds like how great. s