I have grown up with my step sisters since I was 6. One of them I get along with and the other one has never really made an effort with me. I wouldn't say we are close but we talk friendly enough to each other when we see each other. I've never met either the boyfriend or fiancé. Since being 18+ I see my step sisters every 3-6 months and that's only when I go to see my dad and step mum.
Re: Do I invite my step sisters and their boyfriends/fiancé ?
However, if you have lived with them since you were 6, unless you are having a very small, private wedding, there is bound to be hurt feelings here if you choose not to invite them.
If you're not close to them then I wouldn't invite them. But if you grew up with them and didn't invite them, regardless of whether they would invite you to their weddings, I think not inviting them might cause deeply hurt feelings. You might want to take that into consideration when making your final decision about inviting them.
But if you do invite them, you are also required to invite their relationship partners, even if you haven't met or don't like them, because you can't invite one half of a social unit without inviting the other.
create unnecessary drama for yourself if you don't invite them. Four people shouldn't break the budget. It's not like they were horrible to you growing up. You even said it was friendly. I think the best course of action here is to invite them, even if it's not "technically" required.
And ditto pps. All significant others must be invited.
people you have no relationship with of course you should invite them.
I had four step-siblings while I was in college. Two lived at home with us, two were grown and married. I often cared for the two young ones when I was home.
After four years, the marriage broke up. Former step-father remarried as soon as the divorce decree was final. (That one lasted five years.)
I invited the youngest step-sister, who was then 16, and gave her a special gift.
I did not invite the young step-brother because he was a monster. (Horrible, unspeakable, ugly issues!)
I did not invite the two older step-sisters because we barely knew each other.
Nobody thought anything was odd about this.
All invited guests must be invited with their SO (anyone who considers themselves in a relationship; Boy/girl friends, engaged, married). Single guests can be invited with a Plus One (a nice gesture) but it is not mandatory to give a date. It is generally advised to give everyone on the list their SO/Plus One to allow for new relationships to form between initial planning and the time invites go out. Now with all that said...
If you grew up with these two step-sisters and you generally get along I would invite them in order to avoid any potential family drama or hurt feelings. Also. you're talking about four people, so unless your venue/budget is that tight I don't see any harm. If you don't think there will be any drama/hurt feelings than you do not have to include them. Also keep in mind that whoever pays gets a say in the guest list.
To be honest, knowing someone since you were 6 is a pretty big deal, and the fact that you still see them 3-6 times a year is also pretty frequent. I don't think I see some of my first cousins more than once a year.