Want To Convince My FWB Or GF To Fuck Others Too

First to give you some context.
I am a 24 year old college student. I am straight.
I am 6 foot 2 and built well. Above average fitness and very strong.
I am secure in my sexual ability and my size around (7 x 5.5 inches).
I have many kinks some that I have tried and some I have yet to.
I have been seeing this girl who I have met with for sex and dates multiple time over the last 6 months.
She is pretty and funny and the sex has been fun for us both. She is a 25 year old Filipina and is short (5 foot 2) with nice big breasts. She is self conscious about her body because she is curvy but has a small (but cute) butt. She is working out often and seeing results.
We keep in contact constantly while occasionally meeting up for a date and sex but have yet to label our relationship.
I have recently developed an interest in swinging and sharing and am hoping to encourage her to start seeing others sexually and then talking about it and sharing with me. Potentially even leading to threesomes or watching her fuck someone else. I have not brought this up to her yet but am hoping to lead her into the idea and get her interested in it.
I have also bought her a dildo and last time we met up I had her use it on herself while I watched and also while she sucked my cock. She enjoyed this quite a bit.
I am looking for advice about what I should do next and how to convince her to try this and other kinks out. She is not sexually conservative but lacks confidence and is unsure about what she likes beyond submissive sex.
Any comments and advice would be greatly appreciated. I want her to be more confident in her sexuality and be able to enjoy sex even more